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Finding the Fourth Proportional to 56,561.44, 84,855.76 and 39,953.76

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Solution

The fourth proportional to 56,561.44, 84,855.76 and 39,953.76 is: 59,940.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,561.44 : 84,855.76 = 39,953.76 : x
  2. Step 2: Convert to fraction form
    56,561.44/84,855.76 = 39,953.76/x
  3. Step 3: Cross multiply
    56,561.44x = 84,855.76 × 39,953.76
  4. Step 4: Simplify right side
    56,561.44x = 3,390,306,669.66
  5. Step 5: Solve for x
    x = 3,390,306,669.66/56,561.44
  6. Step 6: Final answer
    x = 59,940.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.